Section 2 — Algorithms
ENSONIQ DP/4+ Reference Manual 31
08 — Left/Right LFO Range: Out-of-Phase or In-Phase
Determines whether the flanger on the left and right channels is modulating in or out-of phase.
09 — Flanger Sample & Hold Rate Range: Off, 001 to 100
Controls the sample rate of a sample and hold network. This is applied to the LFO within the
flanger. When in hold, the effect will be to create momentarily fixed notches within the
frequency spectrum (if the notch depth is not 00). A setting of 001 will have the largest space
between samples. Higher values will increase the number of holds per second, making the
flanging flow more smoothly. The sample and hold function can be turned off.
10 — Flanger Left Delay Time Range: 0 to 1500 ms
Controls the time delay for the left channel regen delay. This is the “ping.”
11 — Flanger Right Delay Time Range: 0 to 1500 ms
Controls the time delay for the right channel regen delay. This is the “pong.”
12 — Flanger Delay FeedbackRange: -99 to +99
Controls the level of the delay time taps. The sign of the value determines the polarity of the
feedback.
13 — Flanger Left Echo Time Range: 0 to 1500 ms
Controls the flanger echo time for the left side. Higher values yield a deeper echo.
14 — Flanger Right Echo Time Range: 0 to 1500 ms
This parameter controls the flanger echo time for the right side.
15 — Flanger Echo Level Range: 00 to 99
Controls the volume of the discrete echoes. A setting of 00 would eliminate any audible echo.
16 — Bass Fc Range: 0 to 1000 Hz
Sets the cutoff frequency of the lower frequency band shelving filter.
17 — EQ Gain Range: -48 to +24 dB
Sets the amount of boost or cut applied to the low shelving filter.
18 — Treble Fc Range: 01KHz to 16KHz
Selects the cutoff of the upper frequency band high shelving filter.
19 — EQ Gain Range: -48 to +24 dB
Sets the amount of boost or cut applied to the high shelving filter.
20 — EQ Input Level Trim Range: -24 to +00 dB
Adjusts the input volume of the EQs to eliminate the possibility of clipping boosted signals.
21 — Mod1 Source 25 — Mod2 Source
22 — Mod1 Destination 26 — Mod2 Destination
23 — Mod1 Param Range Min 27 — Mod2 Param Range Min
24 — Mod1 Param Range Max28 — Mod2 Param Range Max
See the descriptions under the Algorithm Modulators in the beginning of this section.